Ok, the terminator goes into the gun shop and asks for a variety of weapons. He gets the UZI and the others.

When he attacks Sarah Conner, in the bar that she was waiting at for the cops, the UZI was full auto. Did the gun dealer sell him a full auto, or did the terminator do an illegal modification, thereby getting the ATF after him?

But even if he did convert the gun to full auto, the uxi was still an SBR.If I was Reese I would have just told the ATF that there was a survivalist nutcase running around with an untaxed full auto.ATF would have taken care of the T800 series right good.